1
Roger L Schultz, Benjamin B Stewart III, Jamie Oag, Nadir Mahjoub: Self-contained downhole sensor and method of placing and interrogating same. Halliburton Energy Services, Charles W Gaines, March 25, 2003: US06538576 (140 worldwide citation)

The present invention provides a self-contained sensor module for use in a subterranean well that has a well transmitter or a well receiver associated therewith. In one embodiment, the sensor module comprises a housing, a signal receiver, a parameter sensor, an electronic control assembly, and a par ...


2
Roger L Schultz, William L Bohan: Downhole fluid property measurement tool. Halliburton Company, Tracy W Druce, Lucian Wayne Beavers, July 19, 1994: US05329811 (123 worldwide citation)

Apparatus and methods are provided for measuring a parameter of a hydrocarbon-bearing well fluid sample while the sample is still in place in the well and at downhole pressure and temperature conditions. A tool is lowered into the well to a downhole location. A well fluid sample is trapped in the to ...


3
Henry L Restarick, Clark E Robison, Roger L Schultz: Method and apparatus for a sand screen with integrated sensors. Halliburton Energy Services, David W Carstens, April 29, 2003: US06554064 (104 worldwide citation)

Sensors are attached directly to portions of the sand screen of a gravel packing assembly, with connectors to the sensors run through elements of the screen that are hollow for that purpose. The hollow element can be the trapezoidal wire that is circumferentially wrapped to form the outer screen or ...


4
Michael M Brezinski, Gregory B Chitwood, Ralph H Echols, Gary P Funkhouser, John C Gano, William D Henderson, Paul I Herman, Marion D Kilgore, Jody R McGlothen, Ronald J Powell, Alex Procyk, Thomas W Ray, Michael W Sanders, Roger L Schultz, David J Steele, Robert S Taylor, Bradley L Todd, Cynthia Tuckness: Annular isolators for expandable tubulars in wellbores. Halliburton Energy Services, Albert C Metrailer, February 15, 2005: US06854522 (102 worldwide citation)

The present disclosure addressed apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. Annular seal means are carried in or on production tubing as it is run into a borehole. In conjunction with expansion of the tubing, the seal is deployed to f ...


5
Roger L Schultz, Kevin R Manke, H Kent Beck: Wellbore fluid sampler and method. Halliburton Company, C Dean Domingue, L Wayne Beavers, October 22, 1991: US05058674 (91 worldwide citation)

A well fluid sampling apparatus provides a time delay after actuation of the tool and before a sample is taken. The tool is operated by well pressure acting on a piston. The piston is initially hydraulically blocked so that it cannot move. The time delay is provided after the piston begins moving. A ...


6
Roger L Schultz, Kevin R Manke, Neal G Skinner: Differential actuating system for downhole tools. Halliburton Company, L Wayne Beavers, April 7, 1992: US05101907 (87 worldwide citation)

A differential pressure actuating system for downhole tools provides endless operation by the use of the differential pressure between two isolated zones of a well as a power source for the tool. That differential pressure is applied across a power transfer element to operate the downhole tool.


7
Roger L Schultz: Surface control of well annulus pressure. Halliburton Company, Tracy W Druce, Lucian Wayne Beavers, December 28, 1993: US05273112 (85 worldwide citation)

An annulus pressure control system is provided for controlling annulus pressure in a well to send remote command signals to a downhole tool in the well. The well has associated therewith a high pressure source and a low pressure dump zone. The system includes at least one control valve having an inl ...


8
Roger L Schultz, Robert K Michael, Pete C Dagenais, Michael L Fripp, James C Tucker: Apparatus and method for creating pulsating fluid flow, and method of manufacture for the apparatus. Halliburton Energy Services, John W Wustenberg, Baker Botts L, July 29, 2008: US07404416 (76 worldwide citation)

In one embodiment, the present invention provides an apparatus for creating pulsating fluid flow, including an inlet into which fluid flows and a chamber having an upstream end and a downstream end. The chamber is defined by a pair of outwardly-projecting sidewalls, and the inlet is disposed at the ...


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10
Roger L Schultz, Kevin R Manke, Neal G Skinner: Differential actuating system for downhole tools. Halliburton Company, James R Duzan, L Wayne Beavers, August 24, 1993: US05238070 (70 worldwide citation)

A differential pressure actuating system for downhole tools provides endless operation by the use of the differential pressure between two isolated zones of a well as a power source for the tool. That differential pressure is applied across a power transfer element to operate the downhole tool.